Home / 142,086,161.36-196,078,823.88-80,207,034.32

Finding the Fourth Proportional to 142,086,161.36, 196,078,823.88 and 80,207,034.32

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Solution

The fourth proportional to 142,086,161.36, 196,078,823.88 and 80,207,034.32 is: 110,685,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,086,161.36 : 196,078,823.88 = 80,207,034.32 : x
  2. Step 2: Convert to fraction form
    142,086,161.36/196,078,823.88 = 80,207,034.32/x
  3. Step 3: Cross multiply
    142,086,161.36x = 196,078,823.88 × 80,207,034.32
  4. Step 4: Simplify right side
    142,086,161.36x = 15,726,900,956,368,394
  5. Step 5: Solve for x
    x = 15,726,900,956,368,394/142,086,161.36
  6. Step 6: Final answer
    x = 110,685,662.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.